Amazon announced in April that it would bring its Marketplace for 3rd-party sellers to Australia, sparking a massive stock sell-off, but some fund managers say the dire warnings about traditional retail are overblown.

Sears Holding, the retailer, looks to be rapidly hurtling toward bankruptcy, and therein lies a cautionary history lesson for Amazon.com, Alibaba and other internet conglomerates seeking international domination.

Excess inventory and a glut in athleisure seems to have clipped Under Armour's breakneck speed, following its phenomenal rise and ability to maintain an average quarterly growth rate of 20% for over six years.